For my presentation today at Catholic University of America’s conference on “Christian Culture and Cultures in the Patristic Age,” I’ve created with the Greek and English text of the poem I’ll be discussing (Gregory of Nazianzus’ poem 1.1.11, On the Incarnation). I’m particularly exited to show off the capabilities of hypothes.is, an excellent annotation tool.
You may find the demo site here: https://gregory.equul.us.
Alex Poulos, PhD 
hypothes.is looks like a really helpful tool. Where did you get it from? Does it work with WordPress out of the box?
You can actually use it with any site, so long as you can embed some custom javascript. See more information here: https://hypothes.is.
You can also install a browser extension that lets you use it on any site.